I used to do them, but once I fully understood them, it was boring. What was fun was developing new levels of logic. Once I could solve any one-solution puzzle, no matter the difficulty, it was just boring. It was like doing math at this point. Just solving another algebra...

Much of my family used to be sudoku-obsessed, including myself. I brought a book of the puzzles everywhere with me to keep me from becoming bored. Eventually, they became a cause of my boredom and not a solution to it. All but one of the previously sudoku-addicted people I...